[PATCH v7 09/13] dm-zone: use generic helpers to calculate offset from zone start

[Pankaj Raghav]

Use the blk_queue_offset_from_zone_start() helper function to calculate
the offset from zone start instead of using power of 2 based
calculation.

Signed-off-by: Pankaj Raghav <p.raghav at samsung.com>
Reviewed-by: Luis Chamberlain <mcgrof at kernel.org>
---
 drivers/md/dm-zone.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-zone.c b/drivers/md/dm-zone.c
index 3e7b1fe15..af36d33f9 100644
--- a/drivers/md/dm-zone.c
+++ b/drivers/md/dm-zone.c
@@ -395,7 +395,8 @@ static bool dm_zone_map_bio_begin(struct mapped_device *md,
 	case REQ_OP_WRITE_ZEROES:
 	case REQ_OP_WRITE:
 		/* Writes must be aligned to the zone write pointer */
-		if ((clone->bi_iter.bi_sector & (zsectors - 1)) != zwp_offset)
+		if ((blk_queue_offset_from_zone_start(md->queue,
+						      clone->bi_iter.bi_sector)) != zwp_offset)
 			return false;
 		break;
 	case REQ_OP_ZONE_APPEND:
@@ -608,10 +609,8 @@ void dm_zone_endio(struct dm_io *io, struct bio *clone)
 		 */
 		if (clone->bi_status == BLK_STS_OK &&
 		    bio_op(clone) == REQ_OP_ZONE_APPEND) {
-			sector_t mask = (sector_t)blk_queue_zone_sectors(q) - 1;
-
 			orig_bio->bi_iter.bi_sector +=
-				clone->bi_iter.bi_sector & mask;
+				blk_queue_offset_from_zone_start(q, clone->bi_iter.bi_sector);
 		}
 
 		return;
-- 
2.25.1